16x clu048 1212 driver/coverage

Moflow

Moflow

Well-Known Member
PrometheanLeaf said:
Could I fit sixteen of these Citizen Clu048 1212 3000k 90cri gen6's (36v) on a HLG-320h-36a? Or even a HLG-480-36a? Debating how 32 of these cobs would run in a 4x4 space.

https://www.mouser.com/ProductDetail/MEAN-WELL/HLG-320H-36A?qs=DNaZHaGatO1NxA5khskcKQ==

https://www.mouser.com/ProductDetail/MEAN-WELL/HLG-320H-36A?qs=DNaZHaGatO1NxA5khskcKQ==
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I say yes.
Hlg 480 36A = 13.3 amps ÷ 16 cobs = 0.83 amps per cob = ~ 30 watts per cob
Hlg 320 36A = 8.9 amps ÷ 16 cobs = 0.55 amps per cob = ~ 20 watts per cob

For a 4 x 4 You could run 16 on a 600h 36a at 50w a cob
 
PrometheanLeaf

PrometheanLeaf

Well-Known Member
I was trying to run them around 600-700 ma to try and reach up to that 3.0 umol/j mark but I might be better off with strips.

Depends on the deal I can get with the clu048-1212 chips. I just like the 3000k 90cri spectrum they have. Was going to put 2 cobs per square foot. Might take a bit more time going over my options.
 
Airwalker16

Airwalker16

Well-Known Member
PrometheanLeaf said:
I was trying to run them around 600-700 ma to try and reach up to that 3.0 umol/j mark but I might be better off with strips.

Depends on the deal I can get with the clu048-1212 chips. I just like the 3000k 90cri spectrum they have. Was going to put 2 cobs per square foot. Might take a bit more time going over my options.
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That could be a cool build with 2 per foot.
You could run them in lines that all alternate for perfect coverge.
If that makes any sense.
Just like imagine a plus sign where a cob is at each point. You'd separate the lines and move it over to the next sq foot.
Then on the next row of 4 feet, you'd do the same but start on the opposite line.
 
spoonayyy

spoonayyy

Active Member
I run 25 COBs driven very soft at 20W each in my 4x4. Works perfectly. As a matter of fact, forget about those heavy pin fin heatsinks.. a simple 60x30 or 80x40 profile will do. I run them dimmed at 400W right now.. without CO2, anything more than that is plain overkill at an average of over 1000 µmol/s.
 
Airwalker16

Airwalker16

Well-Known Member
spoonayyy said:
I run 25 COBs driven very soft at 20W each in my 4x4. Works perfectly. As a matter of fact, forget about those heavy pin fin heatsinks.. a simple 60x30 or 80x40 profile will do. I run them dimmed at 400W right now.. without CO2, anything more than that is plain overkill at an average of over 1000 µmol/s.
Click to expand...
What are these profiles you mean?
 
PrometheanLeaf

PrometheanLeaf

Well-Known Member
spoonayyy said:
I run 25 COBs driven very soft at 20W each in my 4x4. Works perfectly. As a matter of fact, forget about those heavy pin fin heatsinks.. a simple 60x30 or 80x40 profile will do. I run them dimmed at 400W right now.. without CO2, anything more than that is plain overkill at an average of over 1000 µmol/s.
Click to expand...
https://www.heatsinkusa.com/2-079-low-stock-please-call/

I was thinking about those heatsinks at 42" lengths, 7" spacing on center, and connecting them all onto 42" lengths of 20/20 t-slot profile. I'd probably run them on solderless holders and use thermal pads, but I wasn't sure if I ran them at 20-30ish watts each if the thermal dissipation would be enough.

If anyone knows the math involved well enough to confirm, I'd have to bow before you.
 
PrometheanLeaf

PrometheanLeaf

Well-Known Member
I might actually just try one run with the following fixture. And see how it runs for a round.

(36) Clu048 1212 3000k 90cri gen6
(1) HLG-480-36a Driver
(6) low profile 2.079 inch serrated heatsinks 45" long heatsink
(2) 20x20 black annadized t-slot profile
(Misc)Wiring, bolts, screws, ect.

That should run about 14 watts max for each cob, and should throw decent umol/j. As well as be a sleek low profile build out. 31.5 watts a sq/foot at that efficiency should do fine in 4x4 right?
 
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Airwalker16

Airwalker16

Well-Known Member
PrometheanLeaf said:
I might actually just try one run with the following fixture. And see how it runs for a round.

(36) Clu048 1212 3000k 90cri gen6
(1) HLG-480-36a Driver
(6) low profile 2.079 inch serrated heatsinks 45" long heatsink
(2) 20x20 black annadized t-slot profile
(Misc)Wiring, bolts, screws, ect.

That should run about 14 watts max for each cob, and should throw decent umol/j. As well as be a sleek low profile build out. 31.5 watts a sq/foot at that efficiency should do fine in 4x4 right?
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Abso-fuckin-lutely.

Stoked to see you build this. You better take us along for the journey!

FYI, you can get Pin Fin heatsinks made by Renxin from Alibaba for cheeeeeap. Especially 20w dissipation. I'm thinking around $2-3/PC. Shipping would be like $60-100USD though. But it might make your build easier. They'll even drill and tap yer holes for Ya if you can give them the spacing you need.
 
spoonayyy

spoonayyy

Active Member
Should be nice. Make sure to keep the wires a bit longer than necessary in case you want to change things around down the road.

This DIY stuff is addicting and if you're anything like me, you're likely gonna get ideas for upgrades within days of finishing the fixture.
 
Airwalker16

Airwalker16

Well-Known Member
spoonayyy said:
Should be nice. Make sure to keep the wires a bit longer than necessary in case you want to change things around down the road.

This DIY stuff is addicting and if you're anything like me, you're likely gonna get ideas for upgrades within days of finishing the fixture.
Click to expand...
Possibly hours/minutes.....seconds... Hahaha
 
PrometheanLeaf

PrometheanLeaf

Well-Known Member
I am going back an forth on which driver to use.

Hlg-480h-36a vs hlg-600h-36a.

I'm feeling like I won't need much more than 500 watts from the wall, but hitting around 610-615 watts from the wall might push canopy penetration a bit harder.
 
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